“…replaced the Tellies with the 5751’s and the screen was removed, I was able to stick my head out of the window and clearly see to the left and right. ” Read
Category Archives: 12ax7/ECC83
Mullard 12ax7 Sort Plates (Canada)
Mullard 12ax7 Short Plates (India)
The three Mullards – 12ax7
Recently I got curious about a sound of tubes produced based on the same technology and in some cases the same equipment, but in different places. One of the reviews was dedicated to EI 12ax7 produced on Telefunken’s equipment and the results were not equal at all.
This time I looked at Mullard’s 12ax7 production from UK, India & Canada. Now the process was supposed to be controlled by Mullard and technology should nave been used the same, so the results should be very similar – they are not.
Mullard 12ax7 Long Plates
Sylvania 5751 – Quest for a gem
As quite a few of you know, Sylvania 5751 JHS or GB with 3 micas is considered to be “the holy grail” of audio tubes. However, everybody is trying to purchase the JHS version with black plates or GB version with gray plates. They totally look cool with all these gold pins or gold letters and if you collecting them, definitely go for gold, but if you want to buy them to listen to them… I will try to help to save you some major bucks and get the same famous sound. There will be no compromises, just a way to get the same gold brand but for $20-25 a tube – I got them as low as $15!!! I will focus on gray plates – I actually prefer the sound of gray plates to black plates – it’s much creamier.
Westinghouse 12ax7 Long Gray Plates
GE 12ax7 Long Gray Plates
“They are beautiful sounding tubes, extremely well balanced from top to bottom, very warm and detailed with a lot of air.”
” It is a great sounding tube, with wonderful air and detail. ”
RCA 7025 Short Plates
This tube has been specifically designed for Audio applications and has very low noise and microphonics.
“i put in this rca 7025, gave it a couple minutes to warm up, put in some brushfire fairytales and i was like, “damn.” i was pretty much floored at the improvement. ” Read
“Sweet, liquid, musical and responsive. Very dynamic and real sounding.”